Switch amplifier ELECTRA – VNR 23

Compact Signal Amplifier for Conductive Level Probe Control

Switch Amplifier ELECTRA VNR 23 Switch Amplifier is a compact, low-cost electronic controller designed to interface with conductive level probes for accurate monitoring of conductive liquids. It uses low-voltage AC conductivity measurement to prevent electrode scaling and galvanic corrosion while providing reliable relay outputs for level alarms, pump control, and automation systems. Its DIN rail mounting, adjustable sensitivity, and dual relay outputs make it an ideal solution for industrial level control applications.

Key Features of Switch Amplifier ELECTRA VNR 23

Switch Amplifier ELECTRA VNR 23 is a low-cost electronic interface designed for conductive level probes and liquid level control. It detects liquid conductivity using low-potential alternating current and activates a relay when the probe contacts the liquid.

⚡ Conductive Probe Interface
Designed for conductive level probes, detecting liquids with a minimum conductivity of 10 µS for dependable level control.

🔄 Low-Voltage AC Measurement
Measures liquid conductivity using alternating current, reducing electrode fouling and eliminating galvanic corrosion for longer probe life.

🎛️ Adjustable Sensitivity
Sensitivity is adjustable from 10 to 250 µS using a built-in side trimmer, allowing easy adaptation to different process liquids.

Key Features:

🔔 Dual Relay Outputs
Features 2 SPDT relay outputs (250 VAC, 5 A) for controlling pumps, alarms, valves, and other automation devices.

🏭 Compact DIN Rail Design
Housed in a compact ABS enclosure with DIN rail mounting for quick installation inside electrical panels.

🔧 Easy Setup & Calibration
Factory preset for standard conductivity, with simple on-site sensitivity adjustment and straightforward wiring for fast commissioning.